23533435340 has 24 divisors (see below), whose sum is σ = 52021278960. Its totient is φ = 8917933248.

The previous prime is 23533435339. The next prime is 23533435349. The reversal of 23533435340 is 4353433532.

It is a self number, because there is not a number n which added to its sum of digits gives 23533435340.

It is not an unprimeable number, because it can be changed into a prime (23533435349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30964667 + ... + 30965426.

It is an arithmetic number, because the mean of its divisors is an integer number (2167553290).

Almost surely, 2^23533435340 is an apocalyptic number.

23533435340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23533435340 is an abundant number, since it is smaller than the sum of its proper divisors (28487843620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23533435340 is a wasteful number, since it uses less digits than its factorization.

23533435340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61930121 (or 61930119 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 35.

Adding to 23533435340 its reverse (4353433532), we get a palindrome (27886868872).

The spelling of 23533435340 in words is "twenty-three billion, five hundred thirty-three million, four hundred thirty-five thousand, three hundred forty".